{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "627983",
    "entityType": "Track",
    "nonce": "0x5e1497b1a96290deb74fc8a7aa9dc9877407339da3840df3c0041fb4f5f4ab84",
    "signature": "0xadfe23eedb33bbdc49e0546db0c945eed8f204e2c7338c63fed85e7a9677682318781f3dff92f7eac03b3fce382ef99794ccb446c7d72d97fc0b3a99eb382cfb1c",
    "signer": "0x8739aB96B52ccc56d0E5226Ff69659162d4269A9",
    "userId": "320952162"
  }
}